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Method for rapidly designing symmetric parts based on CATIA secondary development

A secondary development and symmetrical parts technology, applied in the field of parts design, can solve the problems of cumbersome, error-prone, huge manpower and financial resources, etc., and achieve the effect of avoiding cumbersome operations and improving design efficiency

Active Publication Date: 2021-08-24
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since there are tens of thousands of parts under some products or tooling parts, and the corresponding attributes and parameters reach hundreds of thousands or even millions, it is not only cumbersome and error-prone to complete this work through traditional manual methods, It is inefficient and consumes huge manpower and financial resources

Method used

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  • Method for rapidly designing symmetric parts based on CATIA secondary development
  • Method for rapidly designing symmetric parts based on CATIA secondary development
  • Method for rapidly designing symmetric parts based on CATIA secondary development

Examples

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Embodiment 1

[0039] This embodiment provides a method for rapid design of symmetrical parts based on CATIA secondary development, the specific process is as follows figure 1 shown, including the following steps:

[0040] (1) Select the symmetrical original and the symmetrical reference plane, carry out the symmetry of the three-dimensional digital model entity of the symmetrical original, and generate symmetrical nodes to obtain the symmetrical entity;

[0041] (2) According to the attribute information of the symmetrical original, create the attribute information of the symmetrical entity and establish a link with the symmetrical original;

[0042] (3) According to the graphic set parameters of the symmetrical original, create the graphic set parameters of the symmetrical entity, and establish a link with the symmetrical original;

[0043] (4) Rename and sort the generated symmetric entities according to the naming rules of the given digital model.

[0044] The specific implementation p...

Embodiment 2

[0046]On the basis of the above-mentioned embodiments, this embodiment further defines step (1). In the step (1), the specific process of obtaining a symmetrical entity is as follows: according to the three-dimensional digital-analog features of the symmetrical original that need to be selected, use CATIA software has its own symmetry function to generate the corresponding symmetric entity, and the 3D digital model features of the generated symmetric entity are consistent with the symmetric original, and each feature is updated with the update of the symmetric original. Other parts of this embodiment are the same as those of the foregoing embodiment, and will not be repeated here.

Embodiment 3

[0048] On the basis of the above-mentioned embodiments, this embodiment further defines this embodiment. On the basis of the above-mentioned embodiments, this embodiment further defines that the attribute information of the symmetrical original includes all parts in the three-dimensional digital model of the symmetrical original. ——All the software's self-contained and user-defined attributes and attribute values ​​under the "Product" menu. Other parts of this embodiment are the same as those of the foregoing embodiment, and will not be repeated here.

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Abstract

The invention discloses a method for rapidly designing symmetric parts based on CATIA secondary development. The method comprises the following steps: 1) selecting a symmetric original part needing to be symmetric and a symmetric reference plane, carrying out three-dimensional digital-analog entity symmetry on the symmetric original part, generating symmetric nodes, and obtaining symmetric entities; 2) according to attribute information of the symmetric original, creating the attribute information of symmetric entities, and establishing a link with the symmetric original part; 3) according to graph set parameters of the symmetric original part, creating graph set parameters of the symmetric entities, and establishing a link with the symmetric original part; 4), renaming and ordering the generated symmetric entities according to naming rules of the given mathematical mode. By means of the method, time consumption caused by tedious operation of a traditional method can be greatly reduced, the labor cost is reduced, the symmetric part design efficiency is greatly improved, the design period of new products is shortened, and improvement of the market competitiveness of enterprises is promoted.

Description

technical field [0001] The invention relates to the technical field of parts design, in particular to a method for rapid design of symmetrical parts based on CATIA secondary development. Background technique [0002] Three-dimensional design software (such as CATIA, UG) has been widely used in the design of products and tooling in related manufacturing fields such as automobiles, aviation, and ships. In the design process, it is indispensable to meet the design of left-right symmetrical parts. In particular, the number of symmetrical parts involved in the field of aircraft and corresponding tooling is the largest. [0003] In this process, the traditional method is to realize the physical symmetry of the required components through the built-in symmetry function of CATIA, but this can only obtain the symmetrical entity and part of the structural information. The product attributes, parameters, notes and other descriptions given to the part in the symmetrical original canno...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06T17/00
CPCG06F30/17G06T17/00
Inventor 张乐雷沛曾德标谭红李现坤伍承旭
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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